const int red = 2;
const int blue = A4;
void setup() {
  pinMode(red, OUTPUT);
  pinMode(blue, OUTPUT);
}
void loop() {
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(500);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(500);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(500);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(500);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(500);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(500);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(500);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(00);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
  digitalWrite(red, HIGH);
  digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(red, LOW);
  digitalWrite(blue, HIGH);
  delay(200);
digitalWrite(blue, LOW);
  digitalWrite(red, LOW);
  delay(200);
  digitalWrite(red, HIGH);
  delay(200);
    digitalWrite(red, LOW);
  delay(200);
  digitalWrite(red, HIGH);
  delay(200);
    digitalWrite(red, LOW);
  delay(200);
  digitalWrite(red, HIGH);
  delay(200);
   digitalWrite(red, LOW);
   digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(blue, HIGH);
  delay(200);
    digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(blue, HIGH);
  delay(200);
    digitalWrite(blue, LOW);
  delay(200);
  digitalWrite(blue, HIGH);
  delay(500);
}
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